How to simplify one out of seven 7/1/3
3/(1/7)
=3÷1/7
=21
One in five to one in six
1 / 5 to 1 / 6, 3 / 8 to 1 / 2, 1 / 3 to 2 / 5
They are 6:5, 3:4, 5:3
Just multiply it by the least common multiple of the denominator. For example, the first one is 30
5 / 6: 1 / 6 reduction ratio
5:6:1 = 5:1
I hope my answer can solve your problem,
If in doubt, continue to ask